Charles - THANKS This has happened to me a few times, while putting my iBook to sleep before going home. i thought it was just me or a result of unplugging my usb devices screwy. I've done the delete and lock - we'll see if I kernel panic again. Linda SE MI >> From: Guy McMickle <fierose8608 at fuse.net> >> quit, then a screen pops up with a picture of the power button and=20 >> tells me I need to restart my computer. Ever heard of this problem=20 >> before? Thanks! > > Yes I have, though I haven't personally experienced it. This is a very > specific bug that affects a very specific set of systems. Luckily, > there is a fix for this called GlobalPreferencesLocker. > > Here is a discussion of the problem on Apple's boards: > http://discussions.info.apple.com/WebX?230@21.yHdzaviSfaK.48@.3bbd2dcd > > Here is the tool to fix it: > http://www.versiontracker.com/moreinfo.fcgi?id=18043&db=mac > (they also describe how to fix it manually if you prefer) > > _Chas_